Adhesion of polyamide to polyester
Trying to stick polyamides and polyesters together has always been very difficult: Until we invented Arnitel® TPC – an advanced copolyester elastomer (TPC) that adheres to polyamides and is especially well suited for co-extrusion and 2K over-molding applications.
Can you help?
The development of Arnitel is now well underway at DSM. Can you see a potential application product? Would you be interested in licensing it?
The challenge
Polyamides and TPCs like Arnitel have traditionally offered many advantages for the right applications. Polyamides have a very good chemical and hydrolysis resistance but are quite stiff. TPCs are very flexible and have excellent high and low temperature properties; but have less chemical resistance.
Combining the two would enable manufacturers to get the best of both worlds – but unfortunately polyamides and TPCs don’t stick. At least, not until now…
The solution
Arnitel is a TPC that offers full chemical adhesion with polyamides.
Our new Adhesion Grade is ideal for co-extrusion applications and 2K over-molding applications. Initially we are looking at tube applications that combine the good chemical resistance of (plasticized) PA11 or PA 12 with the high-temperature resistance and flexibility of Arnitel. What’s more we can fine-tune the precise level of adhesion to individual customer and application needs.
In simple terms, we replace the monolayer tube of PA11 or PA12 with a cost-effective multi-layer tube. Not only does this reduce costs, it actually improves the properties of the tube itself.
The offer
- It’s in development: This new Arnitel grade is commercially available and being used for tubes in cars and trucks
- Its patent is pending: The intellectual property is solid and protected
- It’s available: We’re looking for licensees and application partners to work with us on this exciting new development
